Feds: Megaupload User Data Could Be Gone Thursday — Federal prosecutors say data from users of Megaupload could be deleted as soon as Thursday. — U.S. prosecutors blocked access to Megaupload and charged seven men, saying the site facilitated millions of illegal downloads of movies, music and other content.

Microsoft Office 15 technical preview kicks off — Summary: Microsoft is making available to select testers the technical preview of Office 15 client, server and services as of January 30. — Microsoft is kicking off the technical preview for its Office 15 client, servers and cloud services today, January 30.

Meet Bill Gates, the Man Who Changed Open Source Software — The meeting took place a week before Bill Gates retired from Microsoft, and the topic was open source software. — It was the summer of 2008, and for years, the open source community had viewed Microsoft as public enemy number one.

Web Second, Mobile First — Fred Wilson wrote two posts in 2010 that were very influential with the startup community. — The titles were: — Mobile First, Web Second — Mobile First, Web Second (continued) — If you're in the minority that never read these posts - you should.

FDA staffers sue agency over surveillance of personal e-mail — The Food and Drug Administration secretly monitored the personal e-mail of a group of its own scientists and doctors after they warned Congress that the agency was approving medical devices that they believed posed unacceptable risks to patients, government documents show.

BlackBerry Under Siege in Europe — The iPhone has taken a big bite out of the BlackBerry in a market where the older phone once dominated: business customers in North America. — Meanwhile, in Europe, Samsung is poised to do the same to Research in Motion, BlackBerry's maker …

Google Fires Kenya Lead Over Mocality — Google has reportedly fired its Kenya country manager, Olga Arara-Kimani, over a fraudulent use of Mocality's data. — Nairobitech reported: … Sponsor — Nelson Mattos, who had earlier made a statement expressing the company's mortification …

Curebit apologizes for theft, but leaves something out — Curebit co-founder Allan Grant has posted a public apology to 37signals for stealing its design and code. — Social-referral startup Curebit made the admittedly boneheaded mistake of ripping off design and assets from 37signals …

Interview: Tumblr founder David Karp — The chief executive of one of the fastest-growing startups on the internet says he lied about his age and experience to woo clients — David Karp, the founder of the blogging platform Tumblr, was 17 when he decided to cut the apron strings and move to Tokyo.